That depends on exactly what you mean, but soldering a normally closed push button across the battery connection might do the job.
Having said that, aren't the sounds it makes pretty much the same as our normal SK1 mods?
www.circuitbenders.co.uk/synthmod/SK1...

Just stocked up on overlays for Neutron, Edge & Crave - including the Grey Neutron design shown here.
We can ship the first 17 orders right away from our summer studio - the rest go out after Aug 18.
Get yours while they’re hot ☀️
#synth #eurorack #behringer #neutron #crave #edge #synthmod

Lots of interest in modded MAM MB33 retros recently,, so heres some red hot MB33 on MB33 on MB33 on MB33 action!

Mod details at www.circuitbenders.co.uk/synthmod/MB3...